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Fitting Analysis of Catenary Arch Axis Equation in Changing Section

Wu Yang, Shunsuke Yao, Xiaoyu Liu

Abstract


This paper takes actual project as an example, Derivation of the reasonable arch axis Equations for changing cross-section of steel box-concrete composite arch bridge, and using the method of regression analysis to fit the optimal arch axis formula, result of the formula calculation show that, Dead loading changes caused by the main arch ring section changes, has a great influence in arch axis equation and arch axis coefficient. In order to ensure the structure is reasonable, Similar Bridges need to optimize the parameters of the arch axis in the actual project.

Keywords


Changing section, steel box-concrete, catenary, arch axis, Fitting Analysis

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